Home / 43,169.68-64,736.40-18,220.96

Finding the Fourth Proportional to 43,169.68, 64,736.40 and 18,220.96

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Solution

The fourth proportional to 43,169.68, 64,736.40 and 18,220.96 is: 27,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,169.68 : 64,736.40 = 18,220.96 : x
  2. Step 2: Convert to fraction form
    43,169.68/64,736.40 = 18,220.96/x
  3. Step 3: Cross multiply
    43,169.68x = 64,736.40 × 18,220.96
  4. Step 4: Simplify right side
    43,169.68x = 1,179,559,354.94
  5. Step 5: Solve for x
    x = 1,179,559,354.94/43,169.68
  6. Step 6: Final answer
    x = 27,323.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.